Acousticon A-100 (Imperial) Vacuum Tube Hearing Aid
The Acousticon A-100 (Imperial) hearing aid was produced by
Dictograph Products, Inc. of New York in 1947.
It featured a case of gold anodized aluminum with light brown enamel
on the front. The hearing aid measured 4¾” by 2⅜” by ⅞”.
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The Acousticon A-100 featured the same controls as the A-90 and A-90M
with the volume control at the
top left corner, and the microphone on the front behind the grill/logo
at the top right.
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Left side view of the Acousticon A-100 showing the 4 position tone
control. Note the clip to hold the hearing aid in place on the clothing
(bottom left). |
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The Acousticon A-100 was powered by a 1.4 volt RM-4 mercury "A" cell and a 22½ volt 412E
"B" battery. |
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An interesting feature of the Acousticon A-100 was that the "A" battery compartment was configured so that a
number 1015E "A" battery (AA size) could be substituted in place of the
RM-4 mercury cell. |
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Another feature of the A-100 was the capability to attach the Acousticon
Radion radio tuner to the right side of the hearing aid, thus turning
the hearing aid into a personal AM radio for the user. Note the two
holes on the right side for the pins of the Radion to attach/connect to. |
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The Acousticon A-100 with the Radion attached to the right side of
the hearing aid.
Click here for more information on the Acousticon Radion.
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